WO2008036439A3 - Compact high performance chemical detector - Google Patents
Compact high performance chemical detector Download PDFInfo
- Publication number
- WO2008036439A3 WO2008036439A3 PCT/US2007/068720 US2007068720W WO2008036439A3 WO 2008036439 A3 WO2008036439 A3 WO 2008036439A3 US 2007068720 W US2007068720 W US 2007068720W WO 2008036439 A3 WO2008036439 A3 WO 2008036439A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- chemical species
- electrodes
- ion
- field
- ions
- Prior art date
Links
- 150000002500 ions Chemical class 0.000 abstract 6
- 239000013626 chemical specie Substances 0.000 abstract 4
- 230000005684 electric field Effects 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/62—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode
- G01N27/622—Ion mobility spectrometry
- G01N27/624—Differential mobility spectrometry [DMS]; Field asymmetric-waveform ion mobility spectrometry [FAIMS]
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Abstract
Ion mobility spectrometer. The spectrometer includes an enclosed region having a gas with a selected chemical species contained therein. An energy source ionizes the gas and the chemical species. Spaced apart electrodes generate high frequency and DC electric fields across the enclosed region and circuitry is provided for generating voltage waveforms on the electrodes. The voltage waveforms include a symmetric RF field to minimize ion loss and to prevent clustering of the ions with water molecules during an ion buildup phase. A DC and asymmetric, non-uniform RF field is provided to separate and focus the ions in the region during an ion separation phase. Finally, a changing DC or RF field causes the ionized chemical species to move to the electrodes and read-out circuitry responds to current in the electrodes to indicate the presence and/or amount of the chemical species.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US74703406P | 2006-05-11 | 2006-05-11 | |
| US60/747,034 | 2006-05-11 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| WO2008036439A2 WO2008036439A2 (en) | 2008-03-27 |
| WO2008036439A9 WO2008036439A9 (en) | 2008-05-15 |
| WO2008036439A3 true WO2008036439A3 (en) | 2008-07-24 |
Family
ID=39201132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/US2007/068720 WO2008036439A2 (en) | 2006-05-11 | 2007-05-11 | Compact high performance chemical detector |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US20080169417A1 (en) |
| WO (1) | WO2008036439A2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7696474B2 (en) * | 2007-02-05 | 2010-04-13 | Excellims Corporation | Methods and apparatus of ion mobility spectrometer |
| EP2361437A1 (en) | 2008-10-31 | 2011-08-31 | Excellims Corporation | Ion mobility based separation methods and apparatus |
| CN103386168B (en) * | 2013-07-17 | 2016-09-14 | 官爱平 | A kind of radiotherapy system of integrated digital imaging device |
| EP3338298A4 (en) | 2015-08-21 | 2019-04-17 | Pharmacadence Analytical Services, LLC | Novel methods of evaluating performance of an atmospheric pressure ionization system |
| CN109991137A (en) * | 2019-04-02 | 2019-07-09 | 霸州市地海云天环保科技有限公司 | Small ion collection type monitoring device of powder-like waste based on αsource |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4777363A (en) * | 1986-08-29 | 1988-10-11 | Research Corporation Technologies, Inc. | Ion mobility spectrometer |
| US5189301A (en) * | 1991-08-20 | 1993-02-23 | Cpad Holdings, Ltd. | Simple compact ion mobility spectrometer having a focusing electrode which defines a non-uniform field for the drift region |
| US6124592A (en) * | 1998-03-18 | 2000-09-26 | Technispan Llc | Ion mobility storage trap and method |
| US20050145789A1 (en) * | 1999-07-21 | 2005-07-07 | The Charles Stark Draper Laboratory, Inc. | Method and apparatus for electrospray augmented high field asymmetric ion mobility spectrometry |
| US20050205775A1 (en) * | 2004-03-05 | 2005-09-22 | Leslie Bromberg | Plasma ion mobility spectrometer |
| US20050236375A1 (en) * | 2004-04-08 | 2005-10-27 | Peter Gefter | Ion generation method and apparatus |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6713758B2 (en) * | 1998-08-05 | 2004-03-30 | National Research Council Of Canada | Spherical side-to-side FAIMS |
| GB0219072D0 (en) * | 2002-08-16 | 2002-09-25 | Scient Analysis Instr Ltd | Charged particle buncher |
| GB0508239D0 (en) * | 2005-04-23 | 2005-06-01 | Smiths Group Plc | Detection apparatus |
-
2007
- 2007-05-11 WO PCT/US2007/068720 patent/WO2008036439A2/en active Application Filing
- 2007-05-11 US US11/747,276 patent/US20080169417A1/en not_active Abandoned
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4777363A (en) * | 1986-08-29 | 1988-10-11 | Research Corporation Technologies, Inc. | Ion mobility spectrometer |
| US5189301A (en) * | 1991-08-20 | 1993-02-23 | Cpad Holdings, Ltd. | Simple compact ion mobility spectrometer having a focusing electrode which defines a non-uniform field for the drift region |
| US6124592A (en) * | 1998-03-18 | 2000-09-26 | Technispan Llc | Ion mobility storage trap and method |
| US20050145789A1 (en) * | 1999-07-21 | 2005-07-07 | The Charles Stark Draper Laboratory, Inc. | Method and apparatus for electrospray augmented high field asymmetric ion mobility spectrometry |
| US20050205775A1 (en) * | 2004-03-05 | 2005-09-22 | Leslie Bromberg | Plasma ion mobility spectrometer |
| US20050236375A1 (en) * | 2004-04-08 | 2005-10-27 | Peter Gefter | Ion generation method and apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2008036439A9 (en) | 2008-05-15 |
| US20080169417A1 (en) | 2008-07-17 |
| WO2008036439A2 (en) | 2008-03-27 |
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